199040040 has 96 divisors (see below), whose sum is σ = 657914400. Its totient is φ = 52172160.

The previous prime is 199040033. The next prime is 199040053. The reversal of 199040040 is 40040991.

199040040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 199039986 and 199040013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16555 + ... + 25925.

It is an arithmetic number, because the mean of its divisors is an integer number (6853275).

Almost surely, 2^199040040 is an apocalyptic number.

199040040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199040040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328957200).

199040040 is an abundant number, since it is smaller than the sum of its proper divisors (458874360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199040040 is a wasteful number, since it uses less digits than its factorization.

199040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9447 (or 9440 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 199040040 is about 14108.1550884586. The cubic root of 199040040 is about 583.8663999763.

The spelling of 199040040 in words is "one hundred ninety-nine million, forty thousand, forty".